Semi-red Brass C84800 vs Silicon Brass C87200
Property comparison of Semi-red Brass C84800 and Silicon Brass C87200, both copper alloy.
| Property | Semi-red Brass C84800 | Silicon Brass C87200 | Difference |
|---|---|---|---|
| Yield strength | 97 MPa | 172 MPa | +77% |
| Tensile strength | 241 MPa | 379 MPa | +57% |
| Elongation | 30 % | 30 % | 0% |
| Elastic modulus | 100,000 MPa | 120,000 MPa | +20% |
| Shear modulus | 37,000 MPa | 45,000 MPa | +22% |
| Poisson ratio | 0.34 | 0.31 | -9% |
| Density | 8,690 kg/m³ | 8,360 kg/m³ | -4% |
| Thermal conductivity | 72 W/m·K | 36 W/m·K | -50% |
| Specific heat | 385 J/kg·K | 380 J/kg·K | -1% |
| Coefficient of thermal expansion | 0.000019 1/K | 0.000018 1/K | -3% |
| Melting point | 955 °C | 971 °C | +2% |
Difference is Silicon Brass C87200 relative to Semi-red Brass C84800. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- ANSI
- standard
- ANSI
About brass copper alloys
Brass is the copper-zinc alloy family. C26000 (cartridge brass, 70/30) is the standard for deep drawing, ammunition cases, and decorative work. Higher-zinc brasses such as C36000 (free-cutting) are the standard for screw-machine work. Lead-free brass is increasingly required for potable-water service.
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